diff --git a/src/NzbDrone.Host/Bootstrap.cs b/src/NzbDrone.Host/Bootstrap.cs
index 5fdb487de3..2baf8c3d50 100644
--- a/src/NzbDrone.Host/Bootstrap.cs
+++ b/src/NzbDrone.Host/Bootstrap.cs
@@ -88,11 +88,15 @@ private static void EnsureSingleInstance(bool isService, IStartupContext startup
         {
             var instancePolicy = _container.Resolve<ISingleInstancePolicy>();
 
-            if (isService)
+            if (startupContext.Flags.Contains(StartupContext.TERMINATE))
             {
                 instancePolicy.KillAllOtherInstance();
             }
-            else if (startupContext.Flags.Contains(StartupContext.TERMINATE))
+            else if (startupContext.Args.ContainsKey(StartupContext.APPDATA))
+            {
+                instancePolicy.WarnIfAlreadyRunning();
+            }
+            else if (isService)
             {
                 instancePolicy.KillAllOtherInstance();
             }
diff --git a/src/NzbDrone.Host/SingleInstancePolicy.cs b/src/NzbDrone.Host/SingleInstancePolicy.cs
index 8aa3a15dd8..1978c50e68 100644
--- a/src/NzbDrone.Host/SingleInstancePolicy.cs
+++ b/src/NzbDrone.Host/SingleInstancePolicy.cs
@@ -10,6 +10,7 @@ public interface ISingleInstancePolicy
     {
         void PreventStartIfAlreadyRunning();
         void KillAllOtherInstance();
+        void WarnIfAlreadyRunning();
     }
 
     public class SingleInstancePolicy : ISingleInstancePolicy
@@ -45,6 +46,14 @@ public void KillAllOtherInstance()
             }
         }
 
+        public void WarnIfAlreadyRunning()
+        {
+            if (IsAlreadyRunning())
+            {
+                _logger.Debug("Another instance of Radarr is already running.");
+            }
+        }
+
         private bool IsAlreadyRunning()
         {
             return GetOtherNzbDroneProcessIds().Any();
@@ -64,16 +73,16 @@ private List<int> GetOtherNzbDroneProcessIds()
 
                 if (otherProcesses.Any())
                 {
-                    _logger.Info("{0} instance(s) of Sonarr are running", otherProcesses.Count);
+                    _logger.Info("{0} instance(s) of Radarr are running", otherProcesses.Count);
                 }
 
                 return otherProcesses;
             }
             catch (Exception ex)
             {
-                _logger.Warn(ex, "Failed to check for multiple instances of Sonarr.");
+                _logger.Warn(ex, "Failed to check for multiple instances of Radarr.");
                 return new List<int>();
             }
         }
     }
-}
\ No newline at end of file
+}